Apparatus for japanning



(No Model.)

F. CRANE.

APPARATUS POR JAPANNING.

Patented Oct. l2, 1886.

35 H LL. n n m 5 n. yx.: l.. A A... W. vx x .y I D) N PETERS.PImm-Lnnogmpnw, v/nslvingmn. uc.

UNITED STATES Artur rines,

FREDERICK CRANE, CF SUMMIT, ASSIGNOR T() THE FREDERICK CRANE CHEMICALCOMPANY, OF SPRINGFIELD, NElV JERSEY.

APPARATUS FOR JAPANNINQ.

SPECIFICATION forming part of Letters Patent No. 350,869, dated Octoberl2, 1886.

Application filed June "2G, 1886.

To all whom, zt may concern:

Be it known that l, Fitnnnnicu CRANE, a citizen of the United States,residing at Summit, county of Union, and State olf New J ersey, haveinvented certain new and useful Improvements in Apparatus for Use inCoating Articles with Enamel, Lacquer, and other Compositions, of whichthe following specitication is a full, clear, and exact description.

This invention relates more particularly to apparatus for use in thoseprocesses in which the articles are dippedin a liquid composition, areallowed to drain, and are then dried with or without heat, or in whichthe articles at'ter dipping and draining are heated to bake the coatingor for other purpose, or are otherwise treated while suspended from therods or other holders.

The liquid composition may be any appropriate enamel, lacquer, japan,varnish, paint, or the like, although it is intended to use the new andimproved apparatus especially for applying the liquid enamel or lacquerknown and sold as zapou7 The object of the invention is mainly tofacilitate the process by diminishingthc labor of handling and to avoidthe necessity of exposing the articles after dipping and before thecoating has become dry or hard.

Theinvention consists in an apparatus composed,essentially, of a chamberinto which the articles :may be introduced at one point, and from whichthey may be removed at another, supports Vfor upholding the rods orcarriers from which the articles are suspended, and permitting` the sameto be moved through the chamber from the point of introduction to thepoint of removal, and a vat or other receiver at the point ofintroduction below the supports 'for receiving the drainage or surplusliquid from the article when suspended from the rods on said supports.Preferably this vat or drainage-receiver is the dipping-vat or vatholding the composition into which the articles are dipped, so that thesurplus composition drains directly back into the dippingvat.

Theimproved apparatus enables the articles after dipping and after orwhile draining to be moved back and their place to be supplied withSerial No. 206,320.

(No modul.)

newlydipped articles, and afterward to be moved farther back into thechamber, so that the drying or hardening of the coating may take placewithout any handling or exposure of the articles between theintroduction ol' them newly dipped into the chamber and the removaltherefrom of the articles with dried or hardened coating. All thearticles in the apparatus can be moved by the attendant at the front ofthe same as he from time to time inserts a new lot.

IIeretot'ol-ethe articles allier dipping were suspended over thedipping-vat or drainingboard, and when drained were carried byhand to aseparate drying-chamber. This trans portation not only involvesadditional labor, but the coating is liable to become spotted or speckedwith oust or other foreign substances during the act, and with someliquids to be-l come injured by drafts of air.

The invention also consists in the same apparatus comprising, inaddition to the elements, before noted, a steam-coil or otherY heaterfor raising the temperature of the chamber, particularly the temperatureof that part where the drying or hardening ofthe coating takes place.

The invention further consists in t-he same apparatus, with or without asteam coil or heater-,having a movable screen for cutting oli" at thewill ol' the attendant the dipping and draining part of theI chamberfrom the rest, either for confining the heat to the latter or for otherpurpose.

The invention is not limited to any special form of supports or screensnor to other details, since these may be of any suitable description.

An apparatus without any screen or heatingcoil would be within theinvention, although an apparatus with one or both of them is speciallyclaimed.

Referring to the accompanying drawings, which form a part of thisspecification, Figure I isasidc elevation, Fig. Il a front elevation,and Fig. lll a longitudinal central section, of an apparatus constructedin accordance with the invention 5 Fig. IV, a perspective view of one ofthe supporting-rods with its carriages, and Figs. V and VI viewsillustrating another IOO Y blocks of wood or of other material) arefastened to the ends of the rods; but itis obvious that the rollerscould be on the carriages (one or more to each of the carriages) or thatthe latter could slide on the ledges, and also that the rods need not befixed to the blocks or carri ages; but the arrangement shown isconsidered the most convenient.

As shown, the carriages 3 are provided each with a iiange, 11, whichbears against the rollers 12, set in the face of one of the ledges, 2.The end motion of the' rods is thus resisted without inconvenientfriction. Of course such rollers could be embedded in the side of thechamber A, or end rollers on the carriages could beused, or other knownorsuitable means for preventing side motions of a carriage could be usedfor the same purpose. It is not necessary to use any special means toprevent such motion .of the rods, as the contact of the carriages withthe walls of chamber A will do this.

At the front of the chamber, below the ledges 2, is the dipping-vat B,and behind it the board 6, which may be omitted, ifnot desired, its soleobject Abeing to prevent excessive heating of the'vat. Behind thisboard, on the bottom of the chamber, is a steam coilor radiator, U, forraising the temperature in the drying part of the chamber. To cut offthe heat from the front part of the chamber A, where the dipping anddraining take place, a screen, D, is provided. It may be a sliding dooror of other like form, but it is, as shown, in the form of a curtainsuspended from a roller, 7, journaled in bearings on topof the -chamber,and provided with a grooved wheel, 8, at one end. The curtain or screenpasses through a slot in the top of the chamber and hangs down betweenthe ledges. A cord, 9, is wound upon the wheel 8, to which its inner endis fastened, and runs over a pulley, 10. By pulling upon the cord theroller is turned in the direction to Wind up the curtain and thuswithdraw it. `A ring at the end of the cord can be placed upon a hook orpin on the side of the chamber to hold the roller in place. The weightof the curtain is utilized to unroll it when the cord is released.

VThe operation is easy to understand. The articles, suspended from a rodin any ordinary or suitable way, are dipped in the liquid lin the Vat B,and the rod with its load is then raised and the carriages 3, attachedto the ends of therods, are placed upon the 'ledges 2 Iber.

near the front thereof, so that the articles hang over the vat B.Another lot of articles is then dipped, and the rod with its load issupported by its carriages being placed and resting upon the ledges 2.The carriages previously placed on the ledges are pushed back into thechamber. With zapon, the articles drain very quickly, and the drainingis lordinarily finished by the time a second lot has been dipped; but ifthe coating liquid rcquires longer to drain, the vat or other re ceivercan easily be made large enough to be under two or more rods whensupported upon the ledges, or a dripping-board of suitable width may beused. The carriages 3 are made of such length that the rods are properlyVspaced thereby. As rods with newly-dipped articles are placed upon theledges, the vrods carrying the articles which have drained are pushedinto the drying part of the chamber. Here the coating becomes dry orhard, the operation being assisted by the heat from the radiator C whenthis is used. At length 'the rod with its load reaches the rear end ofthe chamber and is removed through the doors 1, which are thereuponclosed again. If the screenv D be in use, it is withdrawn in order toallow each rod to enter in its turn the drying part of the chamber.

In Figs. V and VI the carriages or blocks 3 are attached to an endlessbelt, 13, which runs over pulleys 1,4 and anti-friction rollers 15. Thepulleys and rollers take the place of the ledge and its rollers. Such abelt of blocks or carriages is used on each side of the cham- The endsofthe rods are placed in notches 16 in the blocks or carriages, and thebelts are turned as the rods are moved through the chamber.

It is evident that many other modifications could be made withoutdeparting from the spirit of the invention.

. The dimensions or proportions and materials of the apparatus can bechanged as may be desired.A

I claim as'my invention or discovery- 1. An apparatus for use in coatingarticles, consisting of a chamber into which the articles may beintroduced at one point and from which they may be removed at another,supports which permit the articles to be moved through the chamber, anda vat or receiver in the chamber at the point of introduction of thearticles and below the supports therefor, which vat or IOO receiverreceives the drainage or surplus liqtially as described. v

2. The combination, with afchamber open at the ends and a dipping-vat atthe front end, of the ledges or their specified substitute on `the sidesof said chamber, the carriages or uid from the newly-dipped articles,substanchamber at the point of introduction of the dipping-vat inthefront part of said chamber,

articles, and the heater in the drying part of aheater in the rear part,and a movable screen the chamber, substantially as described. forcutting off the drying from the dipping I5 l. The combination, with thedraining and and draining part of the Chambers, snbstan- 5 dryingchamber, thesnpportsin the said chamtial] y as described.

ber, andthe Vat, ofthe movablescreen for cut- In testimony whereof Ihave signed this ting;l off tliedrying portion of the chamber fromspecification in the presence of two witnesses.

the part containing the vat, substantially as 1 i Y' 1 T doscribed. l*UDDMRIGRl GRAB E. [o 5. An apparatus composed of a draining andVitnesses:

drying chamber, supports which permit the JOSEPH D. GiLLaGHER,

articles to be moved through said chamber, a WLLL-m L. FORD.

